<p>The article explores the role of crystals within the framework of cybernetic acupuncture, with particular reference to the Six-Layer Model of Traditional Chinese Medicine (TCM). Starting from the assumption that resonance represents a fundamental regulatory principle of biological systems, the concept of cybernetic resonance is introduced — the organism’s ability to respond adaptively and self-organizingly to frequency-based stimuli. Using the layer model as a reference, it is shown that each layer exhibits characteristic frequencies and resonance patterns, which are reflected in specific crystal structures.</p><p>In a therapeutic context, the examination of the frequency line (Manfred Reininger) allows the identification of causal pathogenic influences and their targeted elimination through resonance phenomena. Thus, the article links classical TCM principles with modern approaches from biophysics and cybernetics, proposing a model that describes the organism’s self-regulation as a harmonic interaction between frequency, information, and structure.</p>